|
|
# redMine - project management software
|
|
|
# Copyright (C) 2006 Jean-Philippe Lang
|
|
|
#
|
|
|
# This program is free software; you can redistribute it and/or
|
|
|
# modify it under the terms of the GNU General Public License
|
|
|
# as published by the Free Software Foundation; either version 2
|
|
|
# of the License, or (at your option) any later version.
|
|
|
#
|
|
|
# This program is distributed in the hope that it will be useful,
|
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
# GNU General Public License for more details.
|
|
|
#
|
|
|
# You should have received a copy of the GNU General Public License
|
|
|
# along with this program; if not, write to the Free Software
|
|
|
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
|
|
|
|
class CustomField < ActiveRecord::Base
|
|
|
has_many :custom_values, :dependent => :delete_all
|
|
|
acts_as_list :scope => 'type = \'#{self.class}\''
|
|
|
serialize :possible_values
|
|
|
|
|
|
FIELD_FORMATS = { "string" => { :name => :label_string, :order => 1 },
|
|
|
"text" => { :name => :label_text, :order => 2 },
|
|
|
"int" => { :name => :label_integer, :order => 3 },
|
|
|
"float" => { :name => :label_float, :order => 4 },
|
|
|
"list" => { :name => :label_list, :order => 5 },
|
|
|
"date" => { :name => :label_date, :order => 6 },
|
|
|
"bool" => { :name => :label_boolean, :order => 7 }
|
|
|
}.freeze
|
|
|
|
|
|
validates_presence_of :name, :field_format
|
|
|
validates_uniqueness_of :name, :scope => :type
|
|
|
validates_length_of :name, :maximum => 30
|
|
|
validates_format_of :name, :with => /^[\w\s\.\'\-]*$/i
|
|
|
validates_inclusion_of :field_format, :in => FIELD_FORMATS.keys
|
|
|
|
|
|
def initialize(attributes = nil)
|
|
|
super
|
|
|
self.possible_values ||= []
|
|
|
end
|
|
|
|
|
|
def before_validation
|
|
|
# make sure these fields are not searchable
|
|
|
self.searchable = false if %w(int float date bool).include?(field_format)
|
|
|
true
|
|
|
end
|
|
|
|
|
|
def validate
|
|
|
if self.field_format == "list"
|
|
|
errors.add(:possible_values, :blank) if self.possible_values.nil? || self.possible_values.empty?
|
|
|
errors.add(:possible_values, :invalid) unless self.possible_values.is_a? Array
|
|
|
end
|
|
|
|
|
|
# validate default value
|
|
|
v = CustomValue.new(:custom_field => self.clone, :value => default_value, :customized => nil)
|
|
|
v.custom_field.is_required = false
|
|
|
errors.add(:default_value, :invalid) unless v.valid?
|
|
|
end
|
|
|
|
|
|
# Makes possible_values accept a multiline string
|
|
|
def possible_values=(arg)
|
|
|
if arg.is_a?(Array)
|
|
|
write_attribute(:possible_values, arg.compact.collect(&:strip).select {|v| !v.blank?})
|
|
|
else
|
|
|
self.possible_values = arg.to_s.split(/[\n\r]+/)
|
|
|
end
|
|
|
end
|
|
|
|
|
|
# Returns a ORDER BY clause that can used to sort customized
|
|
|
# objects by their value of the custom field.
|
|
|
# Returns false, if the custom field can not be used for sorting.
|
|
|
def order_statement
|
|
|
case field_format
|
|
|
when 'string', 'text', 'list', 'date', 'bool'
|
|
|
# COALESCE is here to make sure that blank and NULL values are sorted equally
|
|
|
"COALESCE((SELECT cv_sort.value FROM #{CustomValue.table_name} cv_sort" +
|
|
|
" WHERE cv_sort.customized_type='#{self.class.customized_class.name}'" +
|
|
|
" AND cv_sort.customized_id=#{self.class.customized_class.table_name}.id" +
|
|
|
" AND cv_sort.custom_field_id=#{id} LIMIT 1), '')"
|
|
|
when 'int', 'float'
|
|
|
# Make the database cast values into numeric
|
|
|
# Postgresql will raise an error if a value can not be casted!
|
|
|
# CustomValue validations should ensure that it doesn't occur
|
|
|
"(SELECT CAST(cv_sort.value AS decimal(60,3)) FROM #{CustomValue.table_name} cv_sort" +
|
|
|
" WHERE cv_sort.customized_type='#{self.class.customized_class.name}'" +
|
|
|
" AND cv_sort.customized_id=#{self.class.customized_class.table_name}.id" +
|
|
|
" AND cv_sort.custom_field_id=#{id} AND cv_sort.value <> '' AND cv_sort.value IS NOT NULL LIMIT 1)"
|
|
|
else
|
|
|
nil
|
|
|
end
|
|
|
end
|
|
|
|
|
|
def <=>(field)
|
|
|
position <=> field.position
|
|
|
end
|
|
|
|
|
|
def self.customized_class
|
|
|
self.name =~ /^(.+)CustomField$/
|
|
|
begin; $1.constantize; rescue nil; end
|
|
|
end
|
|
|
|
|
|
# to move in project_custom_field
|
|
|
def self.for_all
|
|
|
find(:all, :conditions => ["is_for_all=?", true], :order => 'position')
|
|
|
end
|
|
|
|
|
|
def type_name
|
|
|
nil
|
|
|
end
|
|
|
end
|
|
|
|
